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A309422 Numbers k such that 7^k + k^7 is prime. 1
54, 3076, 11796 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
a(4) > 110000.
LINKS
CROSSREFS
Sequence in context: A189200 A042405 A187304 * A212705 A046199 A245831
KEYWORD
nonn,bref,more,hard
AUTHOR
Hugo Pfoertner, Jul 30 2019
STATUS
approved

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Last modified March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)